1 files changed, 1 insertions, 1 deletions
diff --git a/idlc/inc/aststack.hxx b/idlc/inc/aststack.hxx
index 8793f918d52a..fa13d7affd92 100644
--- a/idlc/inc/aststack.hxx
+++ b/idlc/inc/aststack.hxx
@@ -29,7 +29,7 @@ public:
     AstStack();
     ~AstStack();
 
-    sal_uInt32 depth() { return m_top;}
+    sal_uInt32 depth() const { return m_top;}
     AstScope* top();
     AstScope* bottom();
     AstScope* nextToTop();